@Lisa8519 If you do change your payment receipt method to your bank account, DO NOT cancel the PayPal account as it takes forever for AirBnB to process payment method changes, and you do not want your guest payments to end up in limbo.
Otherwise, you should be able to claim the fees paid to PayPal for payment processing on your taxes, thereby reducing your income claims (I am in the US, so our rental expenses may be treated differently). Perhaps another New Zealand host can help you further.